As one of you pointed out, and this clip conclusively proves, Mr. Wizard knew that girls as well as boys could be interested in science—and not just the sort involving the chemistry of cooking. In fact, for all but the first year of the show's run from 1951 to 1965, Mr. Wizard alternated between girl and boy assistants. By 1955, more than 100,000 boys and girls had signed up for membership in one of 5000 chapters of the Mr. Wizard Science Club. Bravo, Mr. Wizard!